Silvia Enciso Sanz

Centro de Cirugía de Mínima Invasión Jesús Usón | CCMIJ · Laparoscopy Unit

Laparoscopic surgery has benefitted from many technical advances, achieving better results and reduced complications in comparison to conventional surgical techniques. Specialist equipment has been developed to better aid the minimally invasive approach, allowing for more precision, becoming a method of choice for biopsy. It is of particular value...

Laparoscopic surgery has benefitted from many technical advances, achieving better results and reduced complications in comparison to conventional surgical techniques. Specialist equipment has been developed to better aid the minimally invasive approach, allowing for more precision, becoming a method of choice for biopsy. It is of particular value...

Zinc-enriched mesoporous bioactive glasses (MBGs) are bioceramics with potential antibacterial and osteogenic properties. However, few assays have been performed to study these properties in animal models. In this study, MBGs enriched with up to 5% ZnO were synthesized, physicochemically characterized, and evaluated for their osteogenic activity bo...

The osteogenic capability of mesoporous bioactive nanoparticles (MBNPs) in the SiO2-CaO system has been assessed in vivo using an osteoporotic rabbit model. MBNPs have been prepared using a double template method, resulting in spherical nanoparticles with a porous core-shell structure that has a high surface area and the ability to incorporate the...

Introduction/background: Reconstructive and ablative urologic techniques require special technical mastery, especially the intracorporeal suturing. Objective: To report the subjective evaluation of a versatile ex-vivo model aimed to practice laparoscopic ureteric reconstructive techniques (LURT) on box-trainer. Study design: The model is a con...

Macroporous scaffolds made of a SiO2-CaO-P2O5 mesoporous bioactive glass (MBG) and epolycaprolactone (PCL) have been prepared by robocasting. These scaffolds showed an excellent in vitro biocompatibility in contact with osteoblast like cells (Saos 2) and osteoclasts derived from RAW 264.7 macrophages. In vivo studies were carried out by implantatio...

Silicon-substituted hydroxyapatite (SiHA) macroporous scaffolds have been prepared by robocasting. In order to optimize their bone regeneration properties, we have manufactured these scaffolds presenting different microstructures: nanocrystalline and crystalline. Moreover, their surfaces have been decorated with vascular endothelial growth factor (...

The osteogenic and angiogenic responses to metal macroporous scaffolds coated with silicon substituted hydroxyapatite (SiHA) and decorated with vascular endothelial growth factor (VEGF) have been evaluated in vitro and in vivo. Ti6Al4V-ELI scaffolds were prepared by electron beam melting and subsequently coated with Ca10(PO4)5.6(SiO4)0.4(OH)1.6 fol...

This study aimed to assess trainee perceptions regarding the usefulness of an intensive hands-on minimally invasive surgery (MIS) training, as well as the subsequent implementation experience. An online questionnaire was emailed to 110 small animal veterinarians who attended the course between 2007 and 2017. The questionnaire comprised three sectio...

In this work, a new family of multiphasic materials composed of the same amount of silica gel and variable amount of three calcium phosphates with very different solubilities, monetite > amorphous calcium phosphate > hydroxyapatite (HAp), was studied. Silicon was added to calcium phosphate to increase bioactivity and osteinductivity. The influence...

Objectives: To describe a roadmap of the most representative milestones and considerations in the validation of surgical simulators, especially those of laparoscopic surgery. And additionally, help determine when in this process a simulator can be considered as validated. Methods: A non-systematic review was carried out searching terms like simu...

Silicon-substituted hydroxyapatite (SiHA) macroporous scaffolds have been prepared by robocasting. In order to optimize their bone regeneration properties, we have manufactured these scaffolds presenting different microstructures: nanocrystalline and crystalline. Moreover, their surfaces have been decorated with vascular endothelial growth factor (...

The objective of this study was to evaluate the effect of 3D imaging on laparoscopic suturing performance using a box trainer and during laparoscopic partial nephrectomy. Besides, the safety and usefulness of this technology in clinical practice were also subjectively evaluated. For the study in the training environment participated 30 surgeons and...

Objective The aim of this study is to prove the effectiveness of a low cost, artificial model for training of a laparoscopic urethrovesical anastomosis. Materials and methods This study included urologists who attended specialised courses on laparoscopic radical prostatectomy (LRP) held during the period 2015–2017. They were divided into 2 groups...

OBJECTIVE: The aim of this study is to prove the effectiveness of a low cost, artificial model for training of a laparoscopic urethrovesical anastomosis. MATERIALS AND METHODS: This study included urologists who attended specialised courses on laparoscopic radical prostatectomy (LRP) held during the period 2015 to 2017. They were divided into 2 gr...

Resumen Objetivo El objetivo de este estudio es demostrar la validez de un modelo inorgánico de bajo coste para el aprendizaje y entrenamiento de la anastomosis uretrovesical laparoscópica. Materiales y métodos En este estudio participaron alumnos que asistieron a alguna de las ediciones de los cursos monográficos sobre prostatectomía radical lap...

Macroporous scaffolds made of a SiO 2 -CaO-P 2 O 5 mesoporous bioactive glass (MBG) and ɛ-polycaprolactone (PCL) have been prepared by robocasting. These scaffolds showed an excellent in vitro biocompatibility in contact with osteoblast like cells (Saos 2) and osteoclasts derived from RAW 264.7 macrophages. In vivo studies were carried out by impla...

The osteogenic and angiogenic responses to metal macroporous scaffolds coated with silicon substituted hydroxyapatite (SiHA) and decorated with vascular endothelial growth factor (VEGF) have been evaluated in vitro and in vivo. Ti6Al4V-ELI scaffolds were prepared by electron beam melting and subsequently coated with Ca10(PO4)5.6(SiO4)0.4(OH)1.6 fol...

Background: Motion analysis parameters (MAPs) have been extensively validated for assessment of minimally invasive surgical skills. However, there are discrepancies on how specific MAPs, tasks, and skills match with each other, reflecting that motion analysis cannot be generalized independently of the learning outcomes of a task. Additionally, the...

Context: At present, there is no universal framework for measuring surgeons' level of competence. Urology training programs should provide and consider knowledge, pyschomotor/cognitive skills, and simulator, cadaver or animal models-based training. Validity is a complex concept that refers to the capacity of the evaluation tool, so it is necessary...

INTRODUCTION: Urology needs models of competencies assessment, although there is a wide range of tools not yet integrated into the official training programs. CONTEXT: At present, there is no universal framework for measuring surgeons´ level of competence. Urology training programs should provide and consider knowledge, pyschomotor/cognitive skills...

Introduction Nearly forty per cent of the postmenopausal women will suffer some type of genital prolapse (1) According to the literature, abdominal sacrocolpopexy is the most effective method for the treatment of this pathology. However, laparoscopic colposacropexy is gradually gaining more interest, primarily due to their similar anatomical and fu...

Purpose The aim of this study is to present the construct and concurrent validity of a motion-tracking method of laparoscopic instruments based on an optical pose tracker and determine its feasibility as an objective assessment tool of psychomotor skills during laparoscopic suturing. Methods A group of novice (\({<}10\) laparoscopic procedures), in...

Objective: To evaluate the feasibility of laparoscopic cholecystoduodenostomy in canine cadavers using barbed self-locking sutures. Study design: In vivo experimental study. Animals: Fresh male Beagle cadavers (n=5). Methods: Surgery was performed by a single veterinary surgeon. Dogs were placed in dorsal recumbency and 15° reverse Trendelen...

Objective: To assess a training model focused on laparoscopic nephrectomy. Material and methods: 16 residents participated in the study, who attended a training program with a theoretical session (1hour) and a dry (7hours) and a wet lab (13hours). During animal training, the first and last nephrectomies were assessed through the completion time...

Introduction: Our objective was to assess a laparoscopic training model for general surgery residents. Methods: Twelve general surgery residents carried out a training program, consisting of a theoretical session (one hour) and a hands-on session on simulator (7 h) and on animal model (13 h). For the first and last repetitions of simulator tasks...

Evaluar un modelo de formación enfocado a la nefrectomía laparoscópica.

The aim of the present study was to assess the content and construct validity of the Canine Laparoscopic Simulator (CLS). Forty-two veterinarians were assigned to experienced (n=12), control (n=15), and training (n=15) groups, which were assessed while performing four laparoscopic tasks on the CLS. The initial and final assessments of all tasks wer...

Objective: To describe and validate a gynecologic laparoscopic-surgery training model. Methods: The present prospective observational study was conducted at the Minimally Invasive Surgery Centre Jesús Usón, Cáceres, Spain, between January 2011 and June 2013. Novice gynecologists attended a 3-day course including simulation and animal training. P...

Nuestro objetivo fue validar un modelo de formación en cirugía laparoscópica para residentes de cirugía general.

Objectives: The aim of the present study is to evaluate, in a ligature-induced peri-implantitis model, the efficacy of three antimicrobial glassy coatings in the prevention of biofilm formation, intrasulcular bacterial growth and the resulting peri-implant bone loss. Methods: Mandibular premolars were bilaterally extracted from five beagle dogs....

Bone researches have studied extant and extinct taxa extensively trying to disclose a complete view of the complex structural and chemical transformations that model and remodel the macro and microstructure of bone during growth. However, to approach bone growth variations is not an easy task, and many aspects related with histological transformati...

A bone regeneration biomaterial must be biocompatible, osteoconductive and osteoinductive, and be gradually replaced by newly formed bone in the shorter time possible. Nanostructured materials, emulating bone composition and morphology, have shown great potential in bone repair because of their higher reactivity, faster reabsorption and improved bi...

Introduction: The aim of this study was to evaluate the effect of 3D imaging system on laparoscopic suturing performance. Methods and Results: Thirteen novices and ten experts carried out three sutures with 2D and 3D laparoscopic imaging systems. Two blinded expert surgeons assessed score and total time was registered. Participants completed a ques...

In this work, we aimed to assess the preventive effect of an absorbable hemostatic collagen sponge (HCS) on the reduction of postsurgical gynecological adhesions in a porcine model. Forty female pigs were subjected to a right uterine horn myotomy and left uterine horn deserosation. They were randomly divided into two groups, HCS application and con...

This article reports on the face, content, and construct validity of a new realistic composite simulator (Simuldog) used to provide training in canine gastrointestinal flexible endoscopy. The basic endoscopic procedures performed on the simulator were esophagogastroduodenoscopy (EGD), gastric biopsy (GB), and gastric foreign body removal (FBR). Con...

Purpose: We present our experience in the design and development of a training program in laparoscopic radical prostatectomy (LRP), and the validation of the first steps of the program by objective measurement of the attendants' skills improvement and subjective evaluation of its contents. Materials and methods: Our training model on LRP has a t...

Background: Over the past decades, minimally invasive surgery has undergone continuous development due to the demand for scarless results, with laparo-endoscopic single-site (LESS) surgery constituting one of today's most favored alternatives. In this study, we aim to assess the relative technical difficulty and performance benefits of dynamic art...

The objective of the present study is to evaluate bone loss at implant abutments coated with a soda-lime glass containing silver nanoparticles subjected to experimental peri-implantitis. Five beagle dogs were used in the experiments, 3 implants were installed in each quadrant of the mandibles. Glass/n-Ag coted abutments were connected to implant pl...

Introduction: Motion metrics have become an important source of information when addressing the assessment of surgical expertise. However, their direct relationship with the different surgical skills has not been fully explored. The purpose of this study is to investigate the relevance of motion-related metrics in the evaluation processes of basic...

Purpose Surgical simulators are currently essential within any laparoscopic training program because they provide a low-stakes, reproducible and reliable environment to acquire basic skills. The purpose of this study is to determine the training learning curve based on different metrics corresponding to five tasks included in SINERGIA laparoscopic...

The laparoscopic suturing task is a complex procedure that requires objective assessment of surgical skills. Analysis of laparoscopic suturing task components was performed to improve current objective assessment tools. Twelve subjects participated in this study as three groups of four surgeons (novices, intermediates and experts). A box-trainer an...

IntroductionOur aim is to assess the face and content validities of the physical simulator Simulap®, as well as the construct validity of its assessment method.

Our aim is to assess the face and content validities of the physical simulator Simulap(®), as well as the construct validity of its assessment method. Five novice surgeons (G1) and five experts (G2) performed seven basic tasks and one suturing exercise on Simulap(®), which were assessed through an exam based on mistakes and performance time. Face a...

Laparoscopic surgery is commonly used in many surgical procedures but requires a learning process to develop the necessary skills. Virtual reality simulators play an essential role within the training curricula. This paper aims to determine whether training in SINERGIA VR simulator allows novice surgeons to improve their basic psychomotor laparosco...

Laparoscopic techniques have nowadays become a gold standard in many surgical procedures, but they imply a more difficult learning skills process. Simulators have a fundamental role in the formative stage of new surgeons. This paper presents the construct and face validity of SINERGIA laparoscopic virtual reality simulator in order to decide whethe...

métricas calculadas por el simulador virtual SINERGIA con el fin de poder llevar a cabo una evaluación objetiva de las destrezas laparoscópicas básicas.